• Once Upon a Time

Once Upon a Time (Photo : Twitter/OnceABC)

"Once Upon a Time" is set to release its two-hour finale on Sunday, May. 10.

Ahead of the upcoming episodes entitled, "Operation Mongoose Part 1 and Part 2," it was already revealed that Emma and Hook's drama will take center stage.

Emma's (Jennifer Morrison) dark side has already been revealed and fans are now anticipating as to how this could affect her relationship with Hook (Colin O'Donoghue).

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In a recent interview with Zap2It, "Once Upon A Time" creators Eddie Kitsis and Adam Horowitz dished on what is in store for Emma and Hook next week.

"We've seen some big moments in their relationship and we have some highly emotional moments planned for the two of them for the rest of the season," they said.

Kitsis added that the upcoming two-hour season finale will narrate Emma's actual thoughts and feelings for Hook.

To make things even more interesting, the show creators revealed that towards the end of the fourth season, Emma will realize that her biggest obstacle is not her enemies, but herself.

"She's going to have to deal with the ramifications of what she's done, who she is and who she has become," Horowitz said. 

Meanwhile, fans are already looking forward to knowing whether or not the hit series will be renewed for another season.

Although there are no official reports yet from ABC, it seems that the series will be renewed for another season because of its good ratings and high viewership, Venture Capital Post reported.

The two-hour season finale of "Once Upon A Time" is set to air on Sunday at 8 p.m. on ABC.

Check out the teaser below!